A survey of zooplankton abundance and species diversity was conducted at 17 stations in Thi Nai Lagoon and Qui Nhon Bay in June 2004. A total of 134 species of zooplankton were identified, of which copepods were most diverse with 87 species, comprising 65% of total species of zooplankton, followed by tunicates (7.5%) and chaetognaths (6.7%). Copepods also dominated in abundance, comprising 76% on average of total zooplankton, followed by invertebrate larvae (16%) and tunicates (7.0%). On the basis of the Bray-Curtis similarity index at species levels, the stations were classified into two distinct groups: those in the Lagoon and in the Bay. The abundance of total zooplankton was significantly higher in the Lagoon than in the Bay. In contrast, the species richness d (Margalef's d) and the values of diversity index (Shannon-Wiener's H') both were significantly higher in the Bay than in the Lagoon, with the mean values of 9.2 vs 2.6 (d) and 3.2 vs 2.3 (H'), respectively. In addition, the total number of species was ca. 2.5 times higher in the Bay (122spp.) than in the Lagoon (48spp.), among which 86 species occurred only in the Bay while only 12 species were specific to the Lagoon. These indicate that the zooplankton assemblages were highly different between the Lagoon and the Bay, and that in the Lagoon comprises a small number of highly abundant species, while that in the Bay comprises a much larger number of sparsely distributed species. These suggest that this area is an excellent field for studying the functional aspects of biodiversity.
雑誌名
Coastal marine science
巻
30
号
1
ページ
328 - 335
発行年
2006-04-28
ISSN
13493000
書誌レコードID
AA11957899
フォーマット
application/pdf
日本十進分類法
452
出版者
International Coastal Research Center, Ocean Research Institute, the University of Tokyo
出版者別名
東京大学海洋研究所国際沿岸海洋研究センター
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Zooplankton abundance and species diversity in Qui Nhon coastal waters, South Central Vietnam in June 2004
KJ00004354626.pdf
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